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December 22, 2014

December 22, 2014

Posted by **bill** on Sunday, March 30, 2008 at 6:03pm.

- geometry -
**Reiny**, Sunday, March 30, 2008 at 6:26pmsimple.

the angles in a heptagon add up to 900º

(180 * 5)

Add up what you have so far, and subtract that from 900

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